如何在C＃中制作2个表单以相同的形式显示 [英] how to make 2 forms in C# be displayed in the same form

问题描述

我的问题是，如果我有表格A和表格B，并且我希望程序以表格A开头，那么如果用户按下按钮则转到表格B但是表格B出现在用户身上，如同相同形式的A所示即我不想显示2种不同的表格表格A和表格BI要么向用户显示表格A，要么显示表格B但未显示在一起???

My question is if i have form A and Form B and i want the program to start with form A then if the user presses a button goes to form B but form B appears to the user as shown in the same form of A ie i don't want to show 2 different forms Form A and Form B I want either form A to be shown to the user or form B to be shown but not shown together???

推荐答案

将您的表单转换为UserControls，然后在主表单中创建一个实例并显示该实例。

Convert your "forms" to UserControls and then create an instance of either one in your main form and show that instead.

假设：



1.表格A是您在Win Form申请表中的主要表格。

2.表格A将创建表格B.

3。表格A上有一个按钮，如果点击将隐藏表格A并显示表格B

4.表格B上有一个按钮，如果点击则会隐藏表格B并显示表格A.

5.隐藏的表单不应显示在TaskBar中。



表单A：

Assume:

1. Form A is your main form in a Win Form Application.
2. Form A will create Form B.
3. There's a Button on Form A that if clicked will hide Form A and show Form B
4. There's a Button on Form B that if clicked will hide Form B and show Form A.
5. The Form that is hidden should not show in the TaskBar.

Form A:

public partial class FormA : Form
{
    public FormA()
    {
        InitializeComponent();
    }

    FormB B = new FormB();
 
    // Form A Load EventHandler   
    private void Form1_Load(object sender, EventArgs e)
    {
        this.ShowInTaskbar = true;

        // subscribe to the Click Event of Form B's button
        B.FormBBtn.Click += btnShowA_Click;
    }

    // the Click EventHandler for the Button on FormB
    private void btnShowB_Click(object sender, EventArgs e)
    {
        this.ShowInTaskbar = false;
        this.Hide();

        B.ShowInTaskbar = true;
        B.Show();
    }

    // the Click EventHandler for the Button on FormA
    private void btnShowA_Click(object sender, EventArgs e)
    {
        B.ShowInTaskbar = false;
        B.Hide();

        this.ShowInTaskbar = true;
        this.Show();
    }
}

表格B：

public partial class FormB : Form
{
    public FormB()
    {
        InitializeComponent();

        // set the reference to Form B's Button
        FormBBtn = btnShowA;
    }

    // expose Form B's Button via a Public Property
    public Button FormBBtn { get; private set; }
}

请注意，我们必须在表单B的构造函数中设置对表单B的Button的引用，因为表单A的实例需要访问之前的 / i>将触发表格B的加载事件以订阅表格B'按钮点击事件。

Note that we must set the reference to Form B's Button in Form B's Constructor because the instance of Form A needs access to it before the Load Event for Form B will be triggered in order to subscribe to Form B' Button Click Event.

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